我使用C#使用Microsoft Print to PDF打印机将文件打印为PDF。该文件已成功生成。但我无法打开它,因为Adobe Reader说该文件已损坏。这是代码
PrintDocument pd = new PrintDocument
{
PrinterSettings = new PrinterSettings
{
PrinterName = "Microsoft Print to PDF (redirected 2)",
PrintToFile = true,
PrintFileName = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "/test.pdf"
}
};
pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
pd.Print();
但如果我使用相同的代码,没有PrinterSettings,那么它会提示输入目的地位置和文件名。如果我同时指定它们,那么它会生成一个pdf文件。这个,我可以用Adobe Reader打开。代码如下所示
PrintDocument pd = new PrintDocument();
pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
pd.Print();
不确定第一种方法中我缺少什么。请帮忙。以下部分是pd_PrintPage
的实现private void pd_PrintPage(object sender, PrintPageEventArgs ev)
{
float linesPerPage = 0;
float yPos = 0;
int count = 0;
float leftMargin = ev.MarginBounds.Left;
float topMargin = ev.MarginBounds.Top;
String line = null;
// Calculate the number of lines per page.
linesPerPage = ev.MarginBounds.Height /
printFont.GetHeight(ev.Graphics);
// Iterate over the file, printing each line.
while (count < linesPerPage &&
((line = streamToPrint.ReadLine()) != null))
{
yPos = topMargin + (count * printFont.GetHeight(ev.Graphics));
ev.Graphics.DrawString(line, printFont, Brushes.Black,
leftMargin, yPos, new StringFormat());
count++;
}
// If more lines exist, print another page.
if (line != null)
ev.HasMorePages = true;
else
ev.HasMorePages = false;
}
答案 0 :(得分:0)
这是我运行正常的代码。我希望它有所帮助。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing.Printing;
using System.IO;
using System.Drawing;
namespace ConsoleApp1
{
class Program
{
private static Font printFont;
private static StreamReader streamToPrint;
static void Main(string[] args)
{
// generate a file name as the current date/time in unix timestamp format
string fileName = (string)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds.ToString();
// the directory to store the output.
string directory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
printFont = new Font("Arial", 10);
try
{
streamToPrint = new StreamReader
("C:\\Users\\RaikolAmaro\\Desktop\\lachy.txt");
// initialize PrintDocument object
PrintDocument doc = new PrintDocument
{
PrinterSettings = new PrinterSettings
{
// set the printer to 'Microsoft Print to PDF'
PrinterName = "Microsoft Print to PDF",
// tell the object this document will print to file
PrintToFile = true,
// set the filename to whatever you like (full path)
PrintFileName = Path.Combine(directory, fileName + ".pdf"),
}
};
doc.PrintPage += new PrintPageEventHandler(pd_PrintPage);
doc.Print();
}
finally
{
streamToPrint.Close();
}
}
private static void pd_PrintPage(object sender, PrintPageEventArgs ev)
{
float linesPerPage = 0;
float yPos = 0;
int count = 0;
float leftMargin = ev.MarginBounds.Left;
float topMargin = ev.MarginBounds.Top;
String line = null;
// Calculate the number of lines per page.
linesPerPage = ev.MarginBounds.Height /
printFont.GetHeight(ev.Graphics);
// Iterate over the file, printing each line.
while (count < linesPerPage &&
((line = streamToPrint.ReadLine()) != null))
{
yPos = topMargin + (count * printFont.GetHeight(ev.Graphics));
ev.Graphics.DrawString(line, printFont, Brushes.Black,
leftMargin, yPos, new StringFormat());
count++;
}
// If more lines exist, print another page.
if (line != null)
ev.HasMorePages = true;
else
ev.HasMorePages = false;
}
}
}